A Few Little Things
  Emission Valve
  It was a real pleasure to enjoy the new vehicle for about 180km (yes less than 200km!!). My insurance guy wanted a ride in it, and I drove around the block when the "CHECK ENGINE" light came on - a red light - so it must be serious!
 

Of course, this happens after business hours - but fortunately I was just a few hundred yards away from my home. So I drove it back - kind of depressed.

  The next morning I called the service department. Dione calmed me down a bit, saying it could be the fuel tank lid... but it wasn't - I checked that before, since I remembered, it was pointed out to me, that a not properly closed fuel tank could cause this - so I was asked to bring the car in.
  The problem was caused by a valve, somehow related to the emission control system. Lone Star Inc. (Calgary) installed a new - modified - valve, and soon I was on the road again.
  If Mercedes-Benz knows, that these valves fail because of their construction and the location where they are installed, why don't they replace them before you have to bring the car back? This was obviously a known issue and a bad omen for things to come.
 

Rusted Studs